The World Jewellery Confederation (CIBJO) has recommended that laboratories use the term grading report for natural diamonds only, arguing that lab-grown diamonds lack the rarity that underpins the concept of grading.
The World Jewellery Confederation (CIBJO) has recommended that laboratories use the term grading report for natural diamonds only, arguing that lab-grown diamonds lack the rarity that underpins the concept of grading.
No comments:
Post a Comment